SAINT ALBANS, Vt. — An elderly Vermont woman was arrested Saturday morning after state police allege she was found to be driving under the influence of prescription drugs.

Around 11:30 a.m., Trooper Richard Stepien pulled over 73-year-old Shirley Therrien of Shelburne, Vt. after receiving an anonymous complaint that she allegedly committed several traffic infractions while driving on Interstate 89.

She was pulled over on Lake Street near Federal Street in Saint Albans, according to a press release issued by the Vermont State Police.

Believing that Therrien may be under the influence of drugs, Stepien called in a drug recognition expert, who reportedly determined she was under the influence of prescription medication while behind the wheel.

Troopers arrested Therrien and brought her to the St. Albans barracks for processing, where she reportedly provided a blood sample for further analysis. She was then released with an appearance ticket and is scheduled to appear in Franklin County District Court at 1 p.m. on Sept. 29.